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6186df3562
`lib/queue.h` implements a basic queue. `event/queue.c` implements a specialized data structure on top of lib/queue.h; it is not a "normal" queue. Rename the specialized multi-level queue implemented in event/queue.c to "multiqueue", to avoid confusion when reading the code. Before this change one can eventually notice that "macros (uppercase symbols) are for the normal queue, lowercase operations are for the multi-level queue", but that is unnecessary friction for new developers (or existing developers just visiting this part of the codebase).
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
#ifndef NVIM_EVENT_LOOP_H
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#define NVIM_EVENT_LOOP_H
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#include <stdint.h>
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#include <uv.h>
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#include "nvim/lib/klist.h"
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#include "nvim/os/time.h"
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#include "nvim/event/multiqueue.h"
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typedef void * WatcherPtr;
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#define _noop(x)
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KLIST_INIT(WatcherPtr, WatcherPtr, _noop)
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typedef struct loop {
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uv_loop_t uv;
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MultiQueue *events, *fast_events, *thread_events;
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klist_t(WatcherPtr) *children;
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uv_signal_t children_watcher;
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uv_timer_t children_kill_timer, poll_timer;
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size_t children_stop_requests;
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uv_async_t async;
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uv_mutex_t mutex;
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int recursive;
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} Loop;
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#define CREATE_EVENT(multiqueue, handler, argc, ...) \
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do { \
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if (multiqueue) { \
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multiqueue_put((multiqueue), (handler), argc, __VA_ARGS__); \
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} else { \
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void *argv[argc] = { __VA_ARGS__ }; \
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(handler)(argv); \
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} \
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} while (0)
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// Poll for events until a condition or timeout
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#define LOOP_PROCESS_EVENTS_UNTIL(loop, multiqueue, timeout, condition) \
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do { \
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int remaining = timeout; \
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uint64_t before = (remaining > 0) ? os_hrtime() : 0; \
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while (!(condition)) { \
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LOOP_PROCESS_EVENTS(loop, multiqueue, remaining); \
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if (remaining == 0) { \
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break; \
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} else if (remaining > 0) { \
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uint64_t now = os_hrtime(); \
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remaining -= (int) ((now - before) / 1000000); \
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before = now; \
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if (remaining <= 0) { \
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break; \
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} \
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} \
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} \
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} while (0)
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#define LOOP_PROCESS_EVENTS(loop, multiqueue, timeout) \
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do { \
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if (multiqueue && !multiqueue_empty(multiqueue)) { \
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multiqueue_process_events(multiqueue); \
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} else { \
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loop_poll_events(loop, timeout); \
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} \
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} while (0)
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "event/loop.h.generated.h"
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#endif
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#endif // NVIM_EVENT_LOOP_H
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